Re: [Xen-devel] [BUG] XEN 4.3.3 - segfault in xl create for HVM with PCI passthrough

[Atom2 <ariel.atom2@xxxxxxxxxx>]

Am 04.11.14 um 17:31 schrieb Ian Campbell:
> On Tue, 2014-11-04 at 17:14 +0100, Atom2 wrote:
> > Am 04.11.14 um 16:44 schrieb Ian Campbell:
> > > On Tue, 2014-11-04 at 16:13 +0100, Atom2 wrote:
> > > Otherwise I think the next step would be to downgrade to 4.3.1 and see
> > > if the problem persists, in order to rule out changes elsewhere in the
> > > system. If the problem doesn't happen with a 4.3.1 rebuilt on your
> > > current system then the next thing would probably be to bisect the
> > > issue. There are only 31 toolstack changes in that range, so it ought to
> > > only take 5-6 iterations.
> > Unfortunately 4.3.1 is no longer available as an ebuild as 4.3.3 seemed
> > to fix security issues and therefore 4.3.1 has been deleted from the
> > repos. So it's not straightforward and I need to figure out how to get
> > the old version back. But I am sure there's a way.
> I don't know anything about ebuilds, but if you end up needing to bisect
> then building from xen.git might be useful anyway (unless you can get an
> ebuild to trivially build some other version).
Before I go down that route would I also need to re-compile xen (i.e. 
the hypervisor at /boot/xen-4.3.3.gz that's being booted from grub) or 
only xen-tools? In other words does xen-tools 4.3.1 work with the 
hypervisor version 4.3.3 under /boot? I wouldn't want to end up with an 
unbootable system.
In terms of ebuilds: Adding patches to a version is pretty easy as 
gentoo works from source code. So if 4.3.3 is just different by a number 
of well defined patches from 4.3.1 then that should be straightforward 
as applying patches is really trivial.
Thanks Atom2

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